Door lock



May 15, 1923. f K, 1,455,677

. s. R'sTEvENs* DOOR LOCK Filed Nov. 2, 1921 -2 Sheets-Sheet l @leb/@w+May 15, 1923. 15,455,677

' S. R. STEVENS Doon Locx Filed Nov. 2, 1921 2;sheets-sheet l2 ljejrfrf/VS l. I Y Nm3/vers w/rwfssfs 1o semi-automatic nature,

' 15 hotels, etc.

v Patented May l5,

unita sement noss-'s'rnvnnsor new4 ronnie 1.

C E Q noon noon.

Application Ied November To all whoma'my concern:

Beit knownthat i, SAMUEL Bj'. STEVENS, a citizen 'of the `UnitedvStates, and resident of the city" of lNew York, borough o Maxis hat-tan,county of New York and VState 'et New York, have invented -a new and1mproved Door Lock,I of which the following is a full, clear,`and exactdescription.

p My invention relates Ato a door lockA of a which is adapted for use inconnection with all types of swinging doors, but is particularlyintended to .be usedon what is commonly known asa revolving door, suchas are employed in banks,

It is a well appreciated fact that any number oftheft locks have beenprovided .which are to be actuated by an oiiicial of a bank, or salesmanof a store, but these devices have for the most part proven impracticalfor the reason that the instant the alarm was sounded the banditimmediately took alarm and left the premises, in most cases before hecould be apprehended.

r i"hus it is an object of my invention to provide a lock of the naturespecified whichv may be operated in an inconspicuous manner, and which,when .once operated will effectively block any persons from leaving the3o building, so that they are trapped.

A further object of this invention is the construction of a door lockwhich, when once. actuated, will'have-'to be. released by a person fromthe outside of the' building,

thus precluding the possibility of the bandit or* intruder operating thesame, or intimidating the ,occupants of the building so that thewill'release the lock.

ISytill further objects of this'invention are stated 'which shall beextremely simple and positive in actuation, and v and a, reci. serialno. maant.;

invention as applied tofzthefdoor of the same,

`Figure fiis a detail viewo the part of the releasing mechanismfforthelock.

in the embodiment illustrated 1 have shown my invention as applied to arevolving door in connection with which it is primarily intended tobeused, and ence being had to reference 'numeral 5 indicates the door-waywithin which the door, comprising a plurality of panels 6 is revolublysupported by any suitable means such as at 7, the said door. 8 whichlatter is bars 9 for va purpose'` operating in an area way preferablycarriedby hereinafter set forth.

lt will be noted'that tl erably carried by,.a tube 10 which acts as ashaft, and that each of thesepanels house a radially extending rod 11,the inner ends of which extend through openings in the tube 1G, theouter ends'being normally substantially flush els, the said rods beingretained in this po- 'sition preferably by means of Asprings 12.

Also, as has ures 1 and formed with' a series of openings 13 disposed inline with the outer ends of the rods 11 and thus it will beobviousassuming that the latter are projected, that certain ot the same willpass into certain ot the openings 13, either immediately lor when thepanels are moved 4to a slight exbeen clearly shown in Figtent so that afurther movement 'o1' .the

panels is barred.

rli`oprovide means which will serve to efy feet` this projection i therods 11 against the retractive-tendency of the springs 12 it ao theconstruction of a device of the character will be seen that post itispositioned withit will be seen, refer-- 4res 1 and 3 that the ie panels6 are pretiwith the outer edges of the pan- I 2, the area way 8 isconveniently length in the form oiian inclined face 15,

Further objects of this invention` will bethe most reduced portion ofwhich normally i ce the exterior of the building and showing my alignswith the inner ends of the rods 11, this element being pressed into`contact with the -same by the action of the springsy 12.

To normally retain the post in the position indicated in full lines inFigure 1, 1 preferablyv support the same by an electrically releasedtrigger 16, the operation of which is controlled by any suitable type ofcircuit breaker 17, as has been diagrammatically illustrated inFigure 1. When the trigger 16 is released by the actuation of thecircuit breaker 17, the post 111 is free to drop i s 4tot l to thisdroppingaction'the rods 1l Will be projected, duev to the outwardpressure exerted -upon the same' by the inclined face 15',and thus theserods 4Will prevent a move-- m'ent of the door panels in the manneraforedescribed, it being understood that the post 14- islpreferably'formed of solid steel or any other material 'of relativelygreat Weight, sofas to at all times insure a positive action, andpreclude a possibility of the same becoming rozen'withinthe tube 10.

Nowwith a vievs'T ofi-effecting a retraction of the post 14 it` will belseen in Figure 1 that the said post isformed with a reduced lower endportion 16 which when the post drops extends wholly Within a socketmember 17. lAny suitable mechanism for causing a movement in a verticaldirection of this member is provided, such asa screw jack 18 which maysupport the salme, this jack being operated preferably by means 'of ashating 19 l,from 'a relatively remote po-int at Which'a handle 20 maybe provided for afording the necessaryleverage'.A

f Thus it Avvill'be seen that the release may bevactua'ted, andthe postwill drop causing .as aforestated a projection of the rods 11 againstthe retractive tendency of the springs 12, and resulting in aninterlocking ofthe panels carrying-these rods, and the area Way 8 andbars 9` of .the door entrance. When the parts are in this position itwill be seen, reference being had -to Figure that I preferably positionthe lock release, i. e. the actuating 'mechanism for the jack 18 at apoint outside of the building, when, even although the occupants ofthebuilding should be intimidated theythemselves will be unable to eiect arelease of the lock with out someexterior agency beyond the walls of thebuildingI oausmg an -actuation of the socket elevating member. It is tobe understood in this connection that the socket 17 normally occupiesthe positionillustrated in Figure 1, and that the same is ofcoursereturned lto its position immediately after the lock has been ref-.setso that no danger exists of-the lock refusing to function.

All of th'e'objects set forth in the state- ,ment of the invention ofthis specification have been' accomplished, and it will be fur-y therunderstood that numerous 'modifications of structure might readily beresorted to Without in the least departing from. the

scope ofmy claims; which are:

l. A door lock including in combination 'with a revolving doorlcomprising a plurality of rotatably carried panels, and means providing`an area Way, the side Walls of lWhichv extend adjacent the` outer edgesof l said'panels, rods carried by said p-anels and means for projectmgsaid rods for causing' the outer edges of the sam'e to extend beyond theouter edges of said panels, pass through openings formed of said areaWay.

2. A door lock including in combinationv a tube, panels connected tosaid tube,'-'I'o'ds carried by said panelsand having their inner endsextending intofsaid' tube" theirl in the side' vWalls outer endsterminating at a point adj acnt the outer edges of said panels, andmeans within said tubefor effecting a projection of said rods and meansadapted to be Aengagedlo'y the outer ends of said rods tol'prevengt 'aing said rods in retracted position,. the inner ends of said rods, When'in retracted position extending intov said tube, theouter ends of saidrods terminating substantially adjacent .the outeredges of said panels',and means Within said tubel for causing a projection of saidrodsfivhereby to permit of the same engaging portions of the lixedmember toprevent 'a movement of said panels. A

4. A door lock including a tube, panels carriedby the said tube, rodsslidably carried by said'panel's', and means for simultaneouslyprojecting all of said rods.

5. A door lock including a tube panels carried by the said tube, rodss'lidably car- V I ried by said panels, means providing an areaWay forsaid door, said means presenting openings in line With the outer ends ofsaid rods', and means for projecting said rods to cause the same toextend into certain ofv said openings.

16. Al door lock including in combination a door comprising a pluralityof movable panels, a series of spaced ,bars arranged adjacent'said door,and normally retracting meanscarried by each of said panels, and meansfor projecting said first named means into the spaces between said barswhereby toy prevent a movement of the door panels vwith respect to thcsame.

,7. A door lock including` a tube, a post slidablv mounted within saidtube, panels carried by said tube, rods` carried by said panels andnormally retracted Within the same, fixed means capable of being engagedbythe outer ends of said rods when the latter are projected, means forpermitting a movement of said post Within said tube, and meansassociated With said post for engaging the inner ends of said rods toproject the same.

8. A door lock including a tube, a post slidably mounted Within saidtube, panels carried by said tube, rods carried by said panels andnormallyretracted Within the same, fixed means capable 4of being engagedby the outer ends of said rods when the latter are projected, said posthaving a part meas?? of its body formed with an inclined face the innerends of said rods being adapted to bear against said face, and releasingmeans for normally retaining said post in elevated position.

9. A door lock including atube, a post slidably mounted within saidtube, panels .carried by said tube, rods carried by said panels andnormally retracted within the same, fixed means capable of beingengagedby the Iouter ends of said rods when the latter are projected, said posthaving a part or' its body formed with an inclined face the inner endsof said rods being adapted to bear against said face, and anelectrically operated'trigger normally supporting said post andretaining the same in elevated position.

10. A door lock includinga rotatable tube, panels carried by said tube,rodsslidably carried by said panels, a post normally retained inelevated position witliin said tube, means forming a part of said postadapted to move said rods outwardly when said post is permitted to drop,means adapted to be engaged by the outer ends of said rods forpreventing a movement of said panels when said post is dropped, andmeans permitting of said post being subsequently elevated to its normalposition,

11. door lock including a rotatable tube, panels carried by said tube,rods slidably carried by said panels,va post normally re tained inelevated position Within said tube,

. means forming a part of said post adapted to move said rods outwardlywhen said post is permitted to drop, meansadapted to be engaged by theouter ends of said rods for preventing a movement of said panels whensaid post is dropped, anda socket member adapted to receive the lowerlend of said post when the latter is dropped, andmeans for elevating saidsocket member to return said post to its normal position.

12. A door lock including a rotatable tube, panels carried by said tube,rods slidably carried by said panels, a post normally retained inelevated position within said tube, means forming a part of said postadapted to move said rods outwardly when said post is permitted to drop,means'adapted to be engaged by the outer ends of said rods forpreventing a movement of said panels when said post is dropped, and asocket member adapted to receive the lower end of said post when thelatter is dropped, and a screw jack adapted to elevate said socketmember to return said post to its normal position.

SAMUEL Ross s'rEvENs.

